Your guide to the Solar System and the night sky
🌎 Location: Greenwich, United Kingdom [change]

Comets

Browse and discover detailed information about 200 of the most interesting comets. Comets are listed in order of decreasing brightness.

Visibility from selected location  = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet 80P/Peters-Hartley

80P/Peters-Hartley
R.A: 06h 32m 37s   Dec: +17° 51’ 27”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 32.3 (JPL)  brightening
in Gemini   object currently below the horizon

Comet C/1996 B2 (Hyakutake)

C/1996 B2 (Hyakutake)
R.A: 13h 48m 35s   Dec: -58° 06’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 34.1 (JPL) 
in Centaurus   object currently below the horizon

Comet C/2018 V1 (Machholz-Fujikawa-Iwamoto)

C/2018 V1 (Machholz-Fujikawa-Iwamoto)
R.A: 15h 46m 23s   Dec: -49° 40’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.0 (JPL)  fading
in Norma   object currently below the horizon

Comet 62P/Tsuchinshan 1

62P/Tsuchinshan 1
R.A: 19h 07m 23s   Dec: -25° 47’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.6 (JPL)  fading
in Sagittarius   object currently below the horizon

Comet 45P/Honda-Mrkos-Pajdusakova

45P/Honda-Mrkos-Pajdusakova
R.A: 16h 13m 00s   Dec: -20° 04’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.7 (JPL)  brightening
in Scorpius   current altitude less than 30 degrees above the horizon

Comet 213P/Van Ness

213P/Van Ness
R.A: 10h 01m 46s   Dec: +10° 55’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.7 (JPL)  brightening
in Leo   current altitude less than 30 degrees above the horizon

Comet 168P/Hergenrother

168P/Hergenrother
R.A: 11h 01m 31s   Dec: +16° 09’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.2 (JPL)  fading
in Leo   current altitude greater than 30 degrees above the horizon

Comet 109P/Swift-Tuttle

109P/Swift-Tuttle
R.A: 09h 45m 58s   Dec: -20° 38’ 04”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.5 (JPL) 
in Hydra   object currently below the horizon

Comet C/2020 H2 (Pruyne)

C/2020 H2 (Pruyne)
R.A: 10h 29m 41s   Dec: +40° 32’ 11”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 38.7 (JPL)  fading
in Ursa Major   current altitude greater than 30 degrees above the horizon

Comet C/2018 O1 (ATLAS)

C/2018 O1 (ATLAS)
R.A: 10h 09m 35s   Dec: -12° 38’ 48”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 47.0 (JPL)  fading
in Hydra   current altitude less than 30 degrees above the horizon

Comet 55P/Tempel-Tuttle

55P/Tempel-Tuttle
R.A: 15h 25m 42s   Dec: -18° 31’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 47.8 (JPL) 
in Libra   current altitude less than 30 degrees above the horizon

Comet Great January Comet of 1910 (C/1910 A1)

C/1910 A1 (Great January Comet)
R.A: 20h 01m 56s   Dec: +06° 38’ 54”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Aquila   current altitude less than 30 degrees above the horizon

Comet Skjellerup-Maristany (C/1927 X1)

C/1927 X1 (Skjellerup-Maristany)
R.A: 17h 05m 05s   Dec: -65° 21’ 57”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Ara   object currently below the horizon

Comet C/1956 R1 (Arend-Roland)

C/1956 R1 (Arend-Roland)
R.A: 04h 02m 22s   Dec: +69° 39’ 37”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Camelopardalis   current altitude greater than 30 degrees above the horizon

Comet C/1969 Y1 (Bennett)

C/1969 Y1 (Bennett)
R.A: 02h 29m 54s   Dec: +30° 09’ 41”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Triangulum   object currently below the horizon

Comet West (C/1975 V1-A)

C/1975 V1-A (West)
R.A: 19h 34m 03s   Dec: -16° 27’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Sagittarius   object currently below the horizon

Eclipse comet (Comet C/1948 V1)

C/1948 V1 (Eclipse comet)
R.A: 08h 46m 59s   Dec: -05° 23’ 19”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Hydra   object currently below the horizon

Comet Ikeya-Seki (C/1965 S1)

C/1965 S1 (Ikeya-Seki)
R.A: 06h 49m 30s   Dec: -12° 14’ 26”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Canis Majoris   object currently below the horizon

Comet C/2012 S1 (ISON)

C/2012 S1 (ISON)
R.A: 07h 38m 10s   Dec: +37° 21’ 29”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Lynx   current altitude less than 30 degrees above the horizon

Southern Comet (C/1947 X1-A)

C/1947 X1-A (Southern Comet)
R.A: 21h 46m 31s   Dec: -04° 38’ 06”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Aquarius   object currently below the horizon
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